Window attachment



A. SANTREY March 24, 1942,

wnmow ATTACHMENT Filed June 9, 1941 INVENTOR.

Patented Mar. 24, 1942 UNITED STATES PATENT OFFICE wmnow ATTACHMENTAdell Santrey, New York, N. 'Y'.

Application June 9, 194l, Scrial No. 391,323

2 Claims. (01. 292 -16) This invention relates to a window attachmentand more particularly to a device which may take the place of sashweights and is adapted to be applied between a window sash and sideportions of the window frame and serve very effectively to yieldablyresist movement of the sash vertically in the window frame. It will thusbe seen that use of sash weights and cords to counterbalance the weightof a window sash and hold it in raised position will not be necessary.This not only eliminates the use of Weights and cords and the expense offrames having weight boxes at their sides, but also eliminateslikelihood of a person being injured by a sash dropping from raisedposition due to the sash cords becoming frayed and broken.

One object of the invention is to provide adevice which may be easilyapplied to a mounted window sash between side rails thereof and sideportions of the frame, the device being formed of resilient metal andplaced under tension when applied so that it has frictional engagementwith the window frame and serves to firmly but yieldably hold the sashin vertically adjusted position.

Another object of the invention is to so form the spring that while itis initially of substantially bowed formation, it assumes a multiplecurvature when subjected to flattening compression and fitted into placebetween-the window sash and the window frame. Thiscauses the spring tobe placed under such tension, when applied Fig. 5 is a perspective viewof a sash holder or spring of the improved construction.

The sash holders constituting the subject matter of this invention areto take the place of sash weights and are applied as shown in Figs. 1and 2, and, referring to these figures, it willbe seen that they areinserted between side portions of the upper and lower sashes I and 2 andthe retainer strips 3 and 4 of the sash 5 where they are confined undertensioning pressure and urgethe sashes toward the parting bead or strip'6 so that fictional grip is established between the sashes and thedividing strip 6, as well as between the sash holders and the retainingstrips. This frictional grip is such that sliding of the sashes by theirown weight in the tracks 1 and 8 will be prevented and when a sash .isshifted vertically in the frame to adjusted position, it will remain inadjusted position. Therefore, the use of sash weights and sash cordsconnecting the weights with the sashes will be eliminated and, also, itis not necessary to use an expensive window frame formed at its sideswith weight boxes.

The holders or retainer springs are indicated in general by the numeral9 and while upper and lower springs are usually applied at each side ofeach sash, it is to be understood that additional faces of the .sashesand confronting faces of the device of this character consisting of astrip of spring steel having its end portions disposed at such an anglethat teeth at ends of the strip may tracks I and 8.

The sash holders or springs are each of the construction shown in Fig.5. Referring to this figure, it will be seen that each holder consistsof a strip-of spring steel of suitable length and width. This strip hasits end portions serrated to form a. plurality of teeth I0 having theirterminals or extremities bent to form spurs II which arecomparatively-short .but of sufiicient length to bite into the sash atan angle to the direction in which the teeth penetrate the sash when thespring or holder in use and applied teeth l0 extend in the planes of thestraight end portions. The fact that the spring is bowed for the majorportion of its length and is provided with straight end portionsconstituting integral extensions of the bowed portion is very importantas this formation causes the spring or holder to assin'ne the shapedisclosed clearly in Fig. 3,

when subjected to depressing pressure. Referring to this figure, it willbe seen that when the spring is depressed by flattening pressure andslipped into place between a sash and a retainer strip of a windowframe, the initially bowed or arcuate portion of the spring strip istransformed to provide outwardly curved grip-.

' that suflicient frictional grip will be exerted to hold the sash inadJusted position in the frame. This pressure and frictional grip makesit unnecessary to provide sash weights and also causes the teeth andtheir spurs to so engage the sash that the spring cannot move out of theposition in which it is applied to the sash. Therefore, the spring willtravel with the sash during raising or lowering thereof and springsapplied to the sash will remain in predetermined spaced relation to eachother and in predetermined relation to endsof the sash.

In addition to eliminating the use of sash weights, the springs alsoserve to eliminate the use of weather strips for a window. This is dueto the fact that the springs press the sashes firmly against side facesof the parting strip and eliminate spaces through which air may pass.

Having thus described the invention, what is claimed is:

1. A sash holder adapted to be fitted between a side portion of a windowsash and a confronting surface of a window frame and anchored to thesash, said holder comprising a strip of spring metal bowedlongitudinally for the major portion of its length and having straightend portions constituting integral extensions of the bowedportion andhaving anchoring teeth at their free ends spaced outwardly from theJunctions of the straight end portions with ends of the bowed portion,the straight end portions of the strip causing the bowed portion whensubjected to pressure to assume a reverse curvature defining an inwardlycurved intermediate portion merging into outwardly curved gripp portionsat the Junctions of the straight portions with ends of the initiallybowed portion.

2. A sash holder for insertion between a side rail of a window sash andbeads of a window frame, said holder comprising a strip of resilientsheet metal bowed longitudinally for the major portion of its length andhaving straight end portions of appreciable length extending from endsof the bowed portion at an angle thereto and provided with anchoringteeth spaced outwardly from ends of the bowed portion, the angle betweenthe straight end portions and ends of the bowed portion causingdepressing pressure upon the bowed portion to transform said bowedportion into a reverse curve defining an inwardly curved intermediatesash-engaging portion merging'into outwardly curved portions at theJunctions of the initially curved portion with inner ends of thestraight end portions.

' ADELL SANTREY.

